Why we built it
Hyperliquid makes every position and every fill public. That removes the hardest problem in copy trading — you no longer have to trust a self-reported track record, because the record is on-chain and verifiable by anyone. What remained was the harder judgement call: public leaderboards rank by outcome, and outcome over a short window rewards leverage and survivorship rather than skill.
So we built the measurement layer we wanted to use ourselves. Traders are scored on the shape of their returns, not the size of them, and capital is spread across a basket in proportion to score. One trader can have a bad month; a scored, isolated book is built to survive it.